Academy Award-nominated actress Shohreh Aghdashloo (House of Sand and Fog) will guest star in the hit drama series Grey's Anatomy in an episode entitled "Scars and Souvenirs," airing THURSDAY, MARCH 15 (9:00-10:01 p.m., ET), on the ABC Television Network. Aghdashloo will portray patient Helen Crawford.

Aghdashloo, who recently appeared in the films The Nativity Story, X-Men: The Last Stand and The Lake House, first gained international recognition for her work in House of Sand and Fog. She not only garnered an Academy-Award nomination for Best Supporting Actress, but won the Supporting Actress categories at the Independent Spirit Awards, New York Film Critics Association and Los Angeles Film Critics Association.

Grey's Anatomy stars Ellen Pompeo as Meredith Grey, Patrick Dempsey as Derek Shepherd, Sandra Oh as Cristina Yang, Isaiah Washington as Preston Burke, Katherine Heigl as Isobel "Izzie" Stevens, Justin Chambers as Alex Karev, T.R. Knight as George O'Malley, Chandra Wilson as Miranda Bailey, James Pickens, Jr. as Richard Webber, Kate Walsh as Addison Shepherd, Sara Ramirez as Callie Torres and Eric Dane as Mark Sloan.

Related: Katherine Heigl Leaving Grey's Anatomy

Dont't forget to also check out: Grey's Anatomy